Frithjof Hammer wrote:
> My goal is to setup an ingress traffic shaping on my PPPOE DSL line with ifb.
>
> My old imq stuff used iptables marks (like 'iptables -t mangle -A
> PREROUTING -p tcp --sport 22 -m length --length :500 -j MARK --set-mark 31')
> to classify the traffic and since i am lazy, i tried to to reuse them with
> ifb. But no luck: iptables marks the packets well, but tc doesn't see the
> marks on ifb0.
>
> May be my problem is somewhere between ppp0 and ifb0, so for a basic test, I
> tried this:
>
> tc qdisc add dev ppp0 ingress
> modprobe ifb
> ip link set up dev ifb0
> tc filter add dev ppp0 parent ffff: protocol ip prio 10 u32 \
> match u32 0 0 flowid 1:1 \
> action mirred egress redirect dev ifb0
>
> and run:
>
> [EMAIL PROTECTED]:/# tcpdump -i ifb0 -n
> tcpdump: WARNING: ifb0: no IPv4 address assigned
> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
> listening on ifb0, link-type EN10MB (Ethernet), capture size 96 bytes
> 12:38:29.584451 PPPoE [ses 0x7dc] IP 217.10.79.2.10000 > 84.189.95.184.1024:
> UDP, length 84
> 12:38:29.585924 PPPoE [ses 0x7dc] IP 84.189.5.17 > 84.189.95.184: GREv1,
> call
> 24388, seq 1868, ack 3210, length 205: compressed PPP data
> 12:38:29.600506 PPPoE [ses 0x7dc] IP truncated-ip - 256 bytes missing!
> 24.163.113.160.34247 > 84.189.95.184.9025: UDP, length 359
> [...]
>
> Looks like the packetes are still pppoe en-capsuled. Is this the correct
> behavior? This only occurs on ppp0, on other devices (like eth0) my iptables
> marks are matched by tc. What can I do to get my iptables marks working on
> ppp0 again?
Does this patch help?
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 5795789..7c80f16 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -83,6 +83,7 @@ static int tcf_mirred_init(struct rtattr *rta, struct rtattr
*est,
case ARPHRD_IPGRE:
case ARPHRD_VOID:
case ARPHRD_NONE:
+ case ARPHRD_PPP:
ok_push = 0;
break;
default:
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